Vidiot and a Bible Student:
Well, obviously babies had no say in the matter at Jonestown. From what I have researched about Jonestown, no one was deceived, they knew the Kool Aid was poisoned. Sure, there is coercion in any social situation, but it came down to drinking or not drinking, and a few who refused to drink fled. Heavens Gate I admit I am less informed of.
My point is that religious groups do not commit suicide when all the members realize their belief system is false. Suicide happens as the ultimate act of faith.
That point is in response to the OPs statement:
What if the Bible is proven to be "a big fairy tale" will Born Again Christians(bac) and JWs kill themself?